Perth-based producer Charlie Young – who has worked with Macklemore, Lil Jon and The Naked and Famous – posted a number of photos of frontman Billie Joe Armstrong to social media. On Instagram, he wrote in a caption: “Recording Green Day.”

Green Day are due back in the UK in June for a series of huge outdoors shows, including one at London’s Hyde Park as part of the British Summer Time series. They will be supported on the day by an impressive bill of support acts.

“You know it’s great, we’re playing songs off ‘Nimrod’, ‘Kerplunk’, the new record, ‘American Idiot’, songs that are off ‘Insomniac’ that we haven’t played in over 20 years,” frontman Billie Joe Armstrong told NME when asked about the tour. “We played these shows for the hardcore fans in the theatres and clubs and we just had a blast, and you could tell because the energy in the crowd was energising us.”